<!DOCTYPE html>
<html>
<head>
<title>Custom Elements: adoptedCallback</title>
<meta name="author" title="Ryosuke Niwa" href="mailto:rniwa@webkit.org">
<meta name="assert" content="adoptedCallback must be enqueued whenever custom element is adopted into a new document">
<link rel="help" href="https://w3c.github.io/webcomponents/spec/custom/#dfn-connected-callback">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="./resources/custom-elements-helpers.js"></script>
</head>
<body>
<div id="log"></div>
<script>
var calls = [];
class MyCustomElement extends HTMLElement {
connectedCallback() { calls.push('connected'); }
adoptedCallback(oldDocument, newDocument) { calls.push('adopted'); calls.push(oldDocument); calls.push(newDocument); }
disconnectedCallback() { calls.push('disconnected'); }
}
customElements.define('my-custom-element', MyCustomElement);
test(function () {
var instance = document.createElement('my-custom-element');
calls = [];
document.body.appendChild(instance);
assert_array_equals(calls, ['connected']);
}, 'Inserting a custom element into the owner document must not enqueue and invoke adoptedCallback');
document_types().forEach(function (entry) {
if (entry.isOwner)
return;
var documentName = entry.name;
var getDocument = entry.create;
promise_test(function () {
return getDocument().then(function (doc) {
var instance = document.createElement('my-custom-element');
calls = [];
doc.documentElement.appendChild(instance);
assert_array_equals(calls, ['adopted', document, doc, 'connected']);
});
}, 'Inserting a custom element into ' + documentName + ' must enqueue and invoke adoptedCallback');
promise_test(function () {
return getDocument().then(function (doc) {
var instance = document.createElement('my-custom-element');
document.body.appendChild(instance);
calls = [];
doc.documentElement.appendChild(instance);
assert_array_equals(calls, ['disconnected', 'adopted', document, doc, 'connected']);
});
}, 'Moving a custom element from the owner document into ' + documentName + ' must enqueue and invoke adoptedCallback');
promise_test(function () {
return getDocument().then(function (doc) {
var instance = document.createElement('my-custom-element');
var parent = document.createElement('div');
parent.appendChild(instance);
calls = [];
doc.documentElement.appendChild(parent);
assert_array_equals(calls, ['adopted', document, doc, 'connected']);
});
}, 'Inserting an ancestor of custom element into ' + documentName + ' must enqueue and invoke adoptedCallback');
promise_test(function () {
return getDocument().then(function (doc) {
var instance = document.createElement('my-custom-element');
var parent = document.createElement('div');
parent.appendChild(instance);
document.body.appendChild(parent);
calls = [];
doc.documentElement.appendChild(parent);
assert_array_equals(calls, ['disconnected', 'adopted', document, doc, 'connected']);
});
}, 'Moving an ancestor of custom element from the owner document into ' + documentName + ' must enqueue and invoke adoptedCallback');
promise_test(function () {
return getDocument().then(function (doc) {
var instance = document.createElement('my-custom-element');
var host = doc.createElementNS('http://www.w3.org/1999/xhtml', 'div');
var shadowRoot = host.attachShadow({mode: 'closed'});
doc.documentElement.appendChild(host);
calls = [];
shadowRoot.appendChild(instance);
assert_array_equals(calls, ['adopted', document, doc, 'connected']);
});
}, 'Inserting a custom element into a shadow tree in ' + documentName + ' must enqueue and invoke adoptedCallback');
promise_test(function () {
return getDocument().then(function (doc) {
var instance = document.createElement('my-custom-element');
var host = document.createElement('div');
var shadowRoot = host.attachShadow({mode: 'closed'});
shadowRoot.appendChild(instance);
calls = [];
doc.documentElement.appendChild(host);
assert_array_equals(calls, ['adopted', document, doc, 'connected']);
});
}, 'Inserting the shadow host of a custom element into ' + documentName + ' must enqueue and invoke adoptedCallback');
promise_test(function () {
return getDocument().then(function (doc) {
var instance = document.createElement('my-custom-element');
var host = document.createElement('div');
var shadowRoot = host.attachShadow({mode: 'closed'});
shadowRoot.appendChild(instance);
document.body.appendChild(host);
calls = [];
doc.documentElement.appendChild(host);
assert_array_equals(calls, ['disconnected', 'adopted', document, doc, 'connected']);
});
}, 'Moving the shadow host of a custom element from the owner document into ' + documentName + ' must enqueue and invoke adoptedCallback');
promise_test(function () {
return getDocument().then(function (doc) {
var instance = document.createElement('my-custom-element');
var host = doc.createElementNS('http://www.w3.org/1999/xhtml', 'div');
var shadowRoot = host.attachShadow({mode: 'closed'});
calls = [];
shadowRoot.appendChild(instance);
assert_array_equals(calls, ['adopted', document, doc]);
});
}, 'Inserting a custom element into a detached shadow tree that belongs to ' + documentName + ' must enqueue and invoke adoptedCallback');
});
</script>
</body>
</html>